Aerated ice cream machine and ice cream machine aeration control method

Abstract

The present invention belongs to the technical field of ice cream machines, specifically an aerated ice cream machine and an aeration control method for an ice cream machine, the ice cream machine includes a refrigeration cylinder, a feed cylinder, a discharge switch, a compressor, a stirrer and a stirring motor, and also includes an aeration device and a control device, the control device includes a controller, a delay control module and an air volume adjustment parameter detection device, the controller can control the aeration device to delay starting after the compressor or the stirring motor is started through the delay control module, and can adjust the aeration flow of the aeration device according to the real-time detection result of the air volume adjustment parameter detection device. The present invention is an aerated ice cream machine and an aeration control method for an ice cream machine, which can control the delayed start of the aeration device through the delay control module, reasonably control the aeration timing, and can adjust the aeration flow of the aeration device according to the real-time detection of the air volume adjustment parameter, so that the adjustment of the aeration amount is more reasonable and efficient, and a better puffing effect can be achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of ice cream machines, in particular to an aerated ice cream machine and an ice cream machine aeration control method. Background Art

[0002] At present, the process of making ice cream is generally as follows: liquid slurry is added into the refrigeration cylinder of the ice cream machine through the feeding cylinder of the ice cream machine, the evaporator in the refrigeration cylinder is cooled and condensed, and at the same time, the stirrer in the refrigeration cylinder stirs the liquid slurry; after a certain period of time, the liquid slurry solidifies and forms ice cream, and the formed ice cream is then beaten out through the discharge switch. However, since the ice cream beaten out in this way has not been puffed, the taste of the ice cream is not good, and the same amount of raw materials will produce less ice cream than the puffed one. Therefore, some people now puff the raw materials first, and then put them into the ice cream machine. When there are customers, the ice cream is beaten out through the discharge port. Since the raw materials are not puffed when making ice cream, the taste is still unsatisfactory, and the puffing effect is not ideal.

[0003] In order to solve the above problems, some ice cream machines use the method of adding air into the refrigeration cylinder to achieve the puffing effect of ice cream. However, the following problems usually exist: (1) The aeration device is usually started immediately after the ice cream machine is turned on, that is, the aeration device is started at the same time as the compressor and the agitator. Since the slurry just added to the refrigeration cylinder is a liquid slurry with a very low viscosity, the air added at this time is difficult to be absorbed by the slurry and basically escapes from the slurry. Therefore, the aeration at this time has little effect on the puffing of the ice cream and may even affect the feeding; (2) The aeration device usually continuously adds air to the refrigeration cylinder at the maximum flow rate, which can easily cause too much air to be injected into the ice cream machine, which will make the puffing rate of the ice cream too high, the texture is soft, and the stability is poor.

[0004] In order to better understand the present invention, the process and characteristics of making ice cream by an ice cream machine are first introduced below:

[0005] During the ice cream making process, the ice cream slurry in the refrigeration cylinder of the ice cream machine is continuously stirred by the agitator while being cooled and condensed, and its temperature gradually drops, gradually condensing into a semi-solid state with a delicate taste. In the process of the ice cream slurry becoming a semi-solid state, as the forming ratio gradually increases, the resistance of the agitator also increases, and the stirring motor of the agitator increases due to the increased load; as the ice cream is formed and output, the hardness of the ice cream slurry decreases, the temperature and speed rise, and the current value is reduced. When the set parameters, such as temperature, speed, current or working time, reach the set value, the ice cream machine stops refrigeration; when the set stop time is reached or there is material mixing work in the middle, the ice cream machine re-enters the refrigeration state. Summary of the invention

[0006] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide an aerated ice cream machine and an ice cream machine aeration control method, which can add air to the refrigeration cylinder and realize ice cream puffing, and control the delayed start of the aerating device through a delay control module, reasonably control the timing of aeration, and can adjust the aeration flow of the aerating device in real time by real-time detection of the ice cream machine's agitator speed, evaporator temperature, stirring motor working current, refrigeration cylinder pressure or continuous working time of the aerating device, so that the adjustment of the aerating flow is more reasonable and accurate, the aerating process is more reasonable and efficient, and better puffing effect can be achieved, and the excessive amount of air filled in the refrigeration cylinder will not affect the ice cream feeding.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] An aerated ice cream machine, comprising an ice cream machine body, the ice cream machine body comprising a refrigeration cylinder, a feeding cylinder, a discharging switch, a compressor, a stirrer and a stirring motor, and also comprising an aerating device for adding gas to the refrigeration cylinder and a control device, the control device comprising a controller, a delay control module arranged on the controller, and an air volume adjustment parameter detection device connected to the controller, the controller can control the aerating device to delay starting after the compressor or the stirring motor is started through the delay control module, and can adjust the aerating flow rate of the aerating device according to the real-time detection result of the air volume adjustment parameter detection device, the air volume adjustment parameter detection device comprising one or more of a speed detection device for detecting the speed of the stirrer, a temperature detection device for detecting the temperature of the evaporator, a pressure detection device for detecting the pressure of the refrigeration cylinder, a current detection device for detecting the working current of the stirring motor, and a time detection device for detecting the continuous working time of the aerating device,

[0009] As a preferred technical solution, the gas filling device includes an air pump, and the controller can control the delayed start of the air pump and adjust the gas filling flow by adjusting the air pump flow.

[0010] As a preferred technical solution, the aeration device includes an air pump or a compressed air source, which is connected to the refrigeration cylinder through an air inlet pipe. An air inlet valve is provided on the air inlet pipe. The controller can control the delayed opening of the air inlet valve and adjust the aeration flow rate by adjusting the opening degree of the air inlet valve.

[0011] As a preferred technical solution, the delay time of the delay control module can be set and adjusted.

[0012] An ice cream machine aeration control method based on the above-mentioned aerated ice cream machine comprises the following steps:

[0013] (1) Initializing and setting the gas volume adjustment parameter setting value, the corresponding gas flow setting value and the gas volume adjustment condition that affect the gas filling device to adjust the gas flow rate, and initializing and setting the delay time of the delay control module, and saving them in the controller, wherein the gas volume adjustment parameter setting value and the gas flow setting value respectively correspond to one or more values, and each value corresponds to a different shaping ratio of ice cream, and the larger the shaping ratio of ice cream, the smaller the gas flow setting value corresponding to the corresponding gas volume adjustment parameter setting value;

[0014] (2) After the ice cream machine body is turned on, the compressor and the stirring motor are started, and the delay control module starts timing after the compressor or the stirring motor is started. When the set delay time is reached, the controller controls the gas filling device to start;

[0015] (3) The gas volume adjustment parameter detection device detects the actual value of the gas volume adjustment parameter in real time, and the controller compares the actual value of the gas volume adjustment parameter with the set value of the gas volume adjustment parameter in real time. When the actual value of the gas volume adjustment parameter meets the corresponding gas volume adjustment condition, the controller adjusts the gas filling flow rate of the gas filling device to the corresponding gas filling flow rate set value;

[0016] (4) After the ice cream is made, the compressor, stirring motor, and aeration device are all shut down. When the compressor or stirring motor is started again, the controller controls the aeration device to start again with a delay through the delay control module.

[0017] As a preferred technical solution, the gas volume adjustment parameters include one or more of agitator speed, evaporator temperature, refrigeration cylinder pressure, agitator motor working current, and aerator working time; the gas volume adjustment conditions include one or more of the following conditions:

[0018] Gas volume adjustment condition 1: the actual value of the stirrer speed is lower than the set value of the stirrer speed;

[0019] Gas volume adjustment condition 2: the actual value of the evaporator temperature is lower than the set value of the evaporator temperature;

[0020] Gas volume adjustment condition three: the actual value of the refrigeration cylinder pressure is higher than the set value of the refrigeration cylinder pressure;

[0021] Gas volume adjustment condition 4: the actual value of the stirring motor working current is higher than the set value of the stirring motor working current;

[0022] Gas volume adjustment condition five: the actual value of the working time of the aerating device is higher than the set value of the working time of the aerating device.

[0023] As a preferred technical solution, after the ice cream is made, when the discharging switch is turned on to discharge the material, the compressor or the stirring motor will be started again, and the controller controls the aeration device to start again with a delay through the delay control module.

[0024] As a preferred technical solution, the gas filling flow setting value is the maximum gas filling flow of the gas filling device*percentage coefficient k, the range of k is 0-100%, and the gas filling flow setting value can be set by setting k.

[0025] As a preferred technical solution, the gas filling flow rate when the gas filling device is started is the maximum gas filling flow rate of the gas filling device.

[0026] Compared with the prior art, the working principle and beneficial effects of the present invention are as follows: the liquid slurry just added into the refrigeration cylinder is difficult to absorb air, and when the liquid slurry is gradually frozen and stirred in the refrigeration cylinder to become viscous, it is easier to absorb air and achieve the puffing effect; however, as the freezing process proceeds, the forming ratio of ice cream becomes higher and higher, and the ice cream gradually becomes a semi-solidified state. At this time, the ability of ice cream to absorb air will gradually decrease, and there is a one-to-one correspondence between the forming ratio of ice cream and the speed of the agitator, the temperature of the evaporator, and the working current of the agitator motor. In addition, the greater the pressure in the refrigeration cylinder, the greater the air pressure on the surface of the slurry, and the higher the puffing rate. The continuous working time of the aeration device will affect the amount of air charged into the refrigeration cylinder, and will also affect the puffing rate of the ice cream. Therefore, this patent can add gas to the refrigeration cylinder and realize ice cream puffing by setting up an aerating device, and control the delayed start of the aerating device through a delay control module, reasonably control the timing of aerating, and can adjust the aerating flow of the aerating device in real time by real-time detection of the ice cream machine's agitator speed, evaporator temperature, agitator motor working current, refrigeration cylinder pressure or continuous working time of the aerating device, so that the adjustment of the aerating flow is more reasonable and accurate, the aerating process is more reasonable and efficient, and better puffing effect can be achieved, and excessive air filling in the refrigeration cylinder will not affect the ice cream feeding.

[0027] The concept, specific structure, working process and effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of an aerated ice cream machine of the present invention;

[0029] Figure 2 It is a schematic diagram of a control system of an aerated ice cream machine of the present invention;

[0030] Figure 3 1 is a control flow chart of the ice cream machine aeration control method of the present invention in an embodiment. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below by taking an air conditioning system as an example in combination with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0032] like Figure 1-2 As shown, an aerated ice cream machine includes an ice cream machine body, the ice cream machine body includes a refrigeration cylinder 1, a feed cylinder 2, a discharge switch 3, a compressor 7, a stirrer 4 and a stirring motor 5, and also includes a gas adding device 6 for adding gas to the refrigeration cylinder 1 and a control device, the control device includes a controller 8, a delay control module 81 arranged on the controller 8, and a gas volume adjustment parameter detection device connected to the controller 8, the controller can control the gas adding device to delay starting after the compressor or the stirring motor 5 is started through the delay control module 81, and can adjust the gas adding flow of the gas adding device 6 according to the real-time detection result of the gas volume adjustment parameter detection device, the gas volume adjustment parameter detection device includes a speed detection device 91 for detecting the speed of the stirrer, a temperature detection device 92 for detecting the temperature of the evaporator, a pressure detection device 93 for detecting the pressure of the refrigeration cylinder, a current detection device 94 for detecting the working current of the stirring motor and a time detection device 95 for detecting the continuous working time of the gas adding device.

[0033] As a preferred embodiment, the gas filling device includes an air pump, and the controller can control the delayed start of the air pump and adjust the flow rate of the air pump.

[0034] As a preferred implementation, the delay time of the delay control module can be set and adjusted.

[0035] An ice cream machine aeration control method based on the above-mentioned aerated ice cream machine is characterized by comprising the following steps:

[0036] (1) Initializing and setting the gas volume adjustment parameter setting value, the corresponding gas flow setting value and the gas volume adjustment condition that affect the gas filling device to adjust the gas flow rate, and initializing and setting the delay time of the delay control module, and saving them in the controller, wherein the gas volume adjustment parameter setting value and the gas flow setting value respectively correspond to one or more values, and each value corresponds to a different shaping ratio of ice cream, and the larger the shaping ratio of ice cream, the smaller the gas flow setting value corresponding to the corresponding gas volume adjustment parameter setting value;

[0037] (2) After the ice cream machine body is turned on, the compressor and the stirring motor are started, and the delay control module starts timing after the compressor or the stirring motor is started. When the set delay time is reached, the controller controls the gas filling device to start;

[0038] (3) The gas volume adjustment parameter detection device detects the actual value of the gas volume adjustment parameter in real time, and the controller compares the actual value of the gas volume adjustment parameter with the set value of the gas volume adjustment parameter in real time. When the actual value of the gas volume adjustment parameter meets the corresponding gas volume adjustment condition, the controller adjusts the gas filling flow rate of the gas filling device to the corresponding gas filling flow rate set value;

[0039] (4) After the ice cream is made, the compressor, stirring motor, and aeration device are all shut down. When the compressor or stirring motor is started again, the controller controls the aeration device to start again with a delay through the delay control module.

[0040] As a preferred technical solution, the gas volume adjustment parameters include one or more of agitator speed, evaporator temperature, refrigeration cylinder pressure, agitator motor working current, and aerator working time; the gas volume adjustment conditions include one or more of the following conditions:

[0041] Gas volume adjustment condition 1: the actual value of the stirrer speed is lower than the set value of the stirrer speed;

[0042] Gas volume adjustment condition 2: the actual value of the evaporator temperature is lower than the set value of the evaporator temperature;

[0043] Gas volume adjustment condition three: the actual value of the refrigeration cylinder pressure is higher than the set value of the refrigeration cylinder pressure;

[0044] Gas volume adjustment condition 4: the actual value of the stirring motor working current is higher than the set value of the stirring motor working current;

[0045] Gas volume adjustment condition five: the actual value of the working time of the aerating device is higher than the set value of the working time of the aerating device.

[0046] As a preferred technical solution, after the ice cream is made, when the discharging switch is turned on to discharge the material, the compressor or the stirring motor will be started again, and the controller controls the aeration device to start again with a delay through the delay control module.

[0047] As a preferred technical solution, the gas filling flow setting value is the maximum gas filling flow of the gas filling device*percentage coefficient k, the range of k is 0-100%, and the gas filling flow setting value can be set by setting k.

[0048] As a preferred technical solution, the gas filling flow rate when the gas filling device is started is the maximum gas filling flow rate of the gas filling device.

[0049] like Figure 3As shown, in this embodiment, the stirrer speed is taken as an example of the gas volume adjustment parameter to introduce the working process of the present invention: the stirrer speed setting value is initialized to include three values ​​of V1, V2, and V3, wherein V1>V2>V3, V1, V2, and V3 correspond to the forming proportions of ice cream Y1, Y2, and Y3, wherein Y1<Y2<Y3, and the gas flow setting value corresponds to three values ​​of Q1, Q2, and Q3, wherein Q1>Q2>Q3.

[0050] During operation, after the liquid slurry is added into the refrigeration cylinder through the feed cylinder, the main body of the ice cream machine is turned on, the compressor and the stirring motor are started first, and then the delay control module is used to control the delayed start of the gas adding device to add gas into the refrigeration cylinder. The gas adding amount is the largest when the air pump is started. As the slurry is continuously frozen and stirred in the refrigeration cylinder, the forming ratio of the slurry becomes higher and higher, and the speed of the stirrer becomes lower and lower. When the actual value of the stirrer speed detected by the speed detection device 91 is lower than V1 (i.e., the first-level gas volume adjustment condition is reached), the controller reduces the gas adding flow rate of the air pump to Q1; when the actual value of the stirrer speed detected by the speed detection device 91 is lower than V2 (i.e., the second-level gas volume adjustment condition is reached), the controller reduces the gas adding flow rate of the air pump to Q2; when the actual value of the stirrer speed detected by the speed detection device 91 is lower than V3 (i.e., the third-level gas volume adjustment condition is reached), the controller reduces the gas adding flow rate of the air pump to Q3. After the ice cream is made, the ice cream machine enters standby mode, and the compressor, stirring motor, and air pump are all stopped. When the discharge switch is turned on to discharge, the controller controls the compressor or stirring motor to start again, and controls the air pump to delay starting again through the delay control module, and repeats the cycle in sequence until the ice cream machine is turned off.

[0051] The principle and beneficial effect of the present invention are as follows: when the ice cream machine is started, the evaporator and the stirring motor are started first, so that the liquid slurry just added into the refrigeration cylinder is gradually frozen and stirred into a semi-solidified slurry in the refrigeration cylinder, and then the air pump is controlled to start with a delay through the delay control module. At this time, the air pump adds air into the refrigeration cylinder, and the air is more easily absorbed by the semi-solidified slurry, so that the puffing effect of the ice cream can be achieved more easily. At this time, the feeding cylinder is no longer fed, so adding air into the refrigeration cylinder at this time will not affect the feeding process; As the freezing process proceeds, the forming ratio of ice cream becomes higher and higher, and the ability to absorb air becomes lower and lower. The forming ratio of ice cream has a one-to-one correspondence with the speed of the stirrer, the temperature of the evaporator, and the working current of the stirring motor. Therefore, the forming ratio of ice cream can be judged by detecting the values ​​of the speed of the stirrer, the temperature of the evaporator, and the working current of the stirring motor, and then the gas flow of the air pump can be adjusted. Moreover, the greater the pressure in the refrigeration cylinder, the greater the air pressure on the surface of the slurry, and the higher the expansion rate. Therefore, the gas flow of the air pump can also be adjusted by detecting the pressure of the refrigeration cylinder; in addition, when the discharge switch is turned on, the finished ice cream is output from the refrigeration cylinder, the hardness of the ice cream slurry decreases, the temperature and speed rise, and the current value decreases. Therefore, the gas flow of the air pump can also be adjusted by detecting the state of the discharge switch. That is, with the increase of the forming ratio, the increase of the pressure in the refrigeration cylinder, and the increase of the working time of the air pump, the gas flow of the air pump is continuously reduced. When the discharge switch is turned on to discharge, the gas flow of the air pump is adjusted, thereby realizing real-time adjustment of the air filling amount in the refrigeration cylinder, so that the ice cream can achieve an ideal expansion effect.

[0052] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. An aerated ice cream machine, comprising an ice cream machine body, wherein the ice cream machine body comprises a refrigeration cylinder, a feed cylinder, a discharge switch, a compressor, a stirrer and a stirring motor, wherein: The invention also includes an aeration device and a control device for adding gas to the refrigeration cylinder. The control device includes a controller, a delay control module arranged on the controller, and an air volume adjustment parameter detection device connected to the controller. The controller can control the aeration device to delay starting after the compressor or the stirring motor is started through the delay control module, and can adjust the aeration flow of the aeration device according to the real-time detection result of the air volume adjustment parameter detection device. The air volume adjustment parameter detection device includes a speed detection device for detecting the speed of the stirrer. The aeration device includes an air pump. The controller can control the delayed start of the air pump and adjust the aeration flow by adjusting the air pump flow. The initial setting of the stirrer speed setting value includes three values ​​of V1, V2, and V3, wherein V1>V2>V3, V1, V2, and V3 correspond to the forming proportions Y1, Y2, and Y3 of the ice cream respectively, wherein Y1<Y2<Y3, and the aeration flow setting value corresponds to three values ​​of Q1, Q2, and Q3, wherein Q1>Q2>Q3. When working, the liquid slurry is passed through After the slurry is added into the refrigerating cylinder through the feeding cylinder, the main engine of the ice cream machine is turned on, the compressor and the stirring motor are started first, and then the delay control module is used to control the delayed start of the aerating device to add gas into the refrigerating cylinder. The amount of gas added when the air pump is started is the largest. As the slurry is continuously frozen and stirred in the refrigerating cylinder, the forming ratio of the slurry becomes higher and higher, and the speed of the agitator becomes lower and lower. When the actual value of the agitator speed detected by the speed detection device is lower than V1, the controller reduces the gas flow rate of the air pump to Q1; when the actual value of the agitator speed detected by the speed detection device is lower than V2, the controller reduces the gas flow rate of the air pump to Q2; when the actual value of the agitator speed detected by the speed detection device is lower than V3, the controller reduces the gas flow rate of the air pump to Q3. After the ice cream is made, the ice cream machine enters the standby state, and the compressor, stirring motor and air pump are all stopped. When the discharging switch opens the discharging, the controller controls the compressor or stirring motor to start again, and controls the air pump to start again with a delay through the delay control module, and repeats in sequence until the ice cream is turned off.

2. The aerated ice cream machine according to claim 1, characterized in that: The gas volume adjustment parameter detection device also includes one or more of a temperature detection device for detecting the evaporator temperature, a pressure detection device for detecting the refrigeration cylinder pressure, a current detection device for detecting the working current of the stirring motor, and a time detection device for detecting the continuous working time of the gas filling device.

3. The aerated ice cream machine according to claim 1, characterized in that: The gas filling device includes an air pump or a compressed air source, which is connected to the refrigeration cylinder through an air intake pipe. An air intake valve is provided on the air intake pipe. The controller can control the delayed opening of the air intake valve and adjust the gas filling flow rate by adjusting the opening degree of the air intake valve.

4. The aerated ice cream machine according to claim 1, characterized in that: The delay time of the delay control module can be set and adjusted.

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